Thanks for taking the time to reach out to the QuickBooks Community. Let me help share some insights about the Chart Of Accounts.
QuickBooks Self-Employed (QBSE) is specifically designed to track business income and expenses to help estimate taxes and file the Schedule C form at year end, and it doesn't have a chart of accounts.
What you can do is connect your bank account with QBSE. Once connected, your transactions will be downloaded automatically. You can review and categorized according to the Schedule C categories available in the system.
For additional reference, you can check these articles: